JP3576317B2 - Communication method and apparatus, communication system - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to, for example, a communication system using the Internet. In particular, when transmitting document information, for example, document information to a client that has transmitted a hypertext request signal, a physical environment or a life scene at the time of reception on the client side, etc. The present invention relates to a technology for editing and transmitting hypertext in accordance with the technology. Here, the server and the client are computer devices provided with a function as a communication device by a predetermined program, and the hypertext is structured such that multimedia data such as text data and images is structured according to a certain format. It is an electronic document.
[0002]
[Prior art]
2. Description of the Related Art With the development of the Internet, it has been widely practiced to acquire hypertext stored in a specific server using an Internet browser on an unspecified client side. The transmission of the hypertext from the server involves identifying the location of the hypertext corresponding to the request signal upon reception of the request signal transmitted by the client, and transmitting the hypertext to the client's Internet address. Done by In such a communication mode, the server and the client are usually fixedly connected via a wired line, respectively. However, in recent years, the physical environment of a communication network or a communication device, or a user operating a client has been recently developed. Communication forms have also been diversified in accordance with life scenes.
[0003]
For example, when going out, a simple notebook computer is used as a client, and this is used in combination with a mobile phone to use as a portable communication device. In an office, a workstation is used as a client, and this is connected to a LAN (local area network). There are also different uses such as connection and use as a fixed communication device. As described above, some communication modes are rearranged in accordance with the life scene of the user who operates the client, and various usage states of the Internet exist.
[0004]
[Problems to be solved by the invention]
By the way, the document information on the Internet is described in a predetermined format such as HTML (Hypertext Language) by an information provider on the server side, and the client side interprets the format of the received document information and provides the information. The document information is displayed on a screen or printed out as intended by the user. Therefore, depending on the use status of the Internet, a situation may occur in which the physical environment of the communication device does not match what the information provider intended. In such a situation, there is no problem if the physical environment of the communication device is excellent enough to cope with a change in the data amount of the document information, but otherwise, the data amount of the document information becomes a burden, There has been a problem that communication costs and waiting time associated with reception become excessive.
Further, the received document information is edited according to the intention of the information provider on the server side. Therefore, the data arrangement of the document information does not always match the one desired by the user on the client side and is unnecessary for the user. There was a problem that a lot of information had to be received. Such a problem is common to other general client-server systems that take the same form as communication through the Internet, and improvements have been desired.
[0005]
Therefore, an object of the present invention is to provide a communication technology that edits document information in accordance with various physical environments or usage conditions on the receiving side, and can receive the document information without difficulty and efficiently on the receiving side. is there.
[0006]
[Means for Solving the Problems]
The present invention provides an improved communication method for editing and transmitting document information in a form that takes into account the physical environment and usage status of the receiving side. The communication method includes: a first communication device that transmits a request signal for requesting document information; and a second communication device that externally acquires document information corresponding to the request signal received from the first communication device. Connected as needed via a communication path, the first communication device generates environment specification data including the specification of its own physical environment and usage status at the time of receiving the document information, and sends it to the second communication device together with the request signal. Sending,The second communication device that has received the environment designation data relays the request signal to the outside, acquires document information from the outside, and acquires the acquired document information.Editing the information amount and the information arrangement order of the document information so as to conform to the specification contents of the environment specification data, and transmitting the edited document information to the first communication device.
[0007]
In this communication method, when the document information includes a plurality of information groups each of which can be distinguished by the presence or absence of a keyword derived from the specified content of the environment specification data, the second communication device sets the information group including the keyword to the keyword. The arrangement of each information group is changed so that the information group is transmitted with higher priority than the information group that does not include. Alternatively, when the document information includes a plurality of information groups each of which can be distinguished by the presence or absence of a keyword derived from the designated content of the environment designation data, and includes an information group in which at least a part of the information amount is compressible, The two communication devices change the information compression ratio of each information block depending on the information amount of each information group or the presence or absence of a keyword. The keyword in this case corresponds to the use status of the first communication device when receiving the document information.
[0008]
The present invention also provides a communication device suitable for implementing the above method.
The communication device of the present invention receives, from a client, a request signal for requesting document information including a plurality of information groups and environment specification data for specifying a physical environment and a user life scene when receiving the document information. ThenBoth, relay means for relaying the request signal to the outside and acquiring document information corresponding to the request signal from the outside,Edit data generating means for generating edit data including a keyword for specifying an edit mode of document information suitable for the physical environment of the client and the environment of the user's life scene based on the specified content of the received environment specification data, Document editing means for editing the information amount of each information group and the arrangement order of each information group in the document information according to the editing data, and transmitting the edited document information to the client. .The document editing means may edit the information amount of each information group and the arrangement order of each information group in the document information according to the editing data when the document information is obtained.
[0009]
In the communication device having the above-described configuration, the document editing unit includes an information compression unit that compresses an information amount of the acquired document information, and an information group including a keyword in the edited data among the compressed individual information groups. And an information arranging unit for rearranging the information group, wherein the information compressing unit performs information compression at a higher compression ratio for an information group having a larger amount of information and for an information group not including the keyword. Is preferred.
[0010]
The present invention also provides a first communication device for transmitting a request signal for requesting document information, and a request signal received from the first communication device.A second communication device that relays the request signal to the outside and obtains document information corresponding to the request signal from the outside;, Via a communication path, wherein the first communication device generates environment specification data including a specification of a physical environment and a use state of the device at the time of receiving the document information, and performs the request. Environment specifying data generating means for transmitting the signal to the second communication device together with a signal, wherein the second communication device changes the physical environment of the first communication device or the environment of the user's life scene based on the specification content of the environment specification data. Editing data generating means for generating editing data including a keyword for specifying an editing mode of the matching document information; and an information amount of each information group and an arrangement order of each information group in the document information acquired from the outside. Document editing means for editing according to the edit data and transmitting the edited document information to the first communication device.
The document editing means edits the information amount of each information group and the arrangement order of each information group in the document information according to the editing data when acquiring the document information, and sends the edited document information to the first communication device. You may make it transmit.
[0011]
The present invention further provides a program storage for physically embodying a program comprising a set of instructions readable by a computer device and executable by the computer device to execute the following method steps for communication processing on the computer device. A medium is also provided.
(1) A step of receiving, from a client, a request signal for requesting document information including a plurality of information groups and environment specification data for specifying a physical environment and a user life scene when receiving the document information.When,
(2) The request signalRelaying to the outside and obtaining from outside the document information corresponding to the request signal;
(3)Generating edit data including a keyword for specifying an edit form of document information suitable for the environment of the client's physical environment or user life scene based on the specification content of the received environment specification data;
(4) editing the information amount of each information group and the arrangement order of each information group in the document information according to the editing data, and transmitting the edited document information to the client;
This program storage medium is suitable for implementing the above-described communication device on a general-purpose computer device.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a communication system using the Internet will be described in detail with reference to the drawings.
[0013]
FIG. 1 is a configuration diagram of the communication system of the present embodiment. In this communication system, a client 1, an editing server 2, and an application server (hereinafter, AP server) 3 are connected to a common communication line 4. The client 1 and the AP server 3 are actually connected to a plurality of various types, but in the present embodiment, each of them will be described as one for convenience. Also, only the elements indispensable for implementing the present invention are shown, and the description of the same elements as those of the conventional product is omitted.
[0014]
The client 1 according to the present embodiment includes an AP processing unit 11 that transmits a request signal for requesting transmission of a hypertext by operating an Internet browser, and a physical environment such as communication performance and communication means or an image display type. And a usage environment information generation unit 12 for generating environment specification data for specifying the usage status of the Internet and the like, and a communication control unit 13 for performing communication control. Here, the communication means is, for example, the type of line connecting the client 1 and the editing server 2, a workstation, a mobile phone, or the like. The display type of the image is, for example, the number of colors or the size of the image adopted at the time of reception. The usage status is, for example, a life scene of a user who operates the client 1.
[0015]
The editing server 2 determines, based on the environment designating data transmitted from the client 1, what kind of keyword the hypertext including the keyword is preferentially transmitted to the client 1, what is the upper limit of the amount of data to be transmitted, The usage environment information processing unit 21 that generates edited data including keywords necessary for editing the hypertext, such as the range of the number of colors and the size of the data when compressing the data, and the usage environment information processing unit 21 that generates the editing data. An information editing unit 22 that edits the hypertext transmitted from the AP server 3 based on the editing data so as to actually match the environment designation data, and a communication control unit 23 that performs communication control are provided.
The AP server 3 receives a request signal transmitted from the client 1 and relayed by the editing server 2, and communicates with the AP processing unit 31 that transmits the requested hypertext to the editing server 2, and that performs communication control. And a control unit 32. The AP server 3 is the same as the conventional server except that the AP server 3 receives the request signal and transmits the corresponding hypertext to and from the editing server 2.
[0016]
Next, in the above-described communication system, an operation content when a request signal of a hypertext addressed to the server AP3 is transmitted from the client 1 will be specifically described with reference to FIGS.
FIG. 2 is a diagram showing the flow of various data in this case. In FIG. 2, a request signal transmitted from the AP processing unit 11 of the client 1 is input to the use environment information generation unit 12. The usage environment information generation unit 12 generates environment specification data that specifies the usage environment of the client 1 when receiving the hypertext, and matches this with the transmission timing of the request signal from the AP processing unit 11, With the editing server 2. FIG. 3 shows an example of the format of the environment specification data generated by the usage environment information generation unit 12.
[0017]
In the present embodiment, as shown in FIG. 3, environment designation data having information of “item number 1” to “item number 4” is generated. “Item No. 1” is the identification information of the user, “Item No. 2” is the usage status (user life scene) of the client 1 when receiving the hypertext, and “Item No. 3” is the communication means when receiving the hypertext. (Communication type) and “item number 4” are display types (of images). FIG. 4 shows a specific information example of each item number.
In the example of FIG. 4, the information of “usage status” (item number 2) indicates whether the user environment when operating the client 1 is at work, on a business trip, at a seat, on a holiday,. , The communication means for operating the client 1 includes any of a mobile phone, a PHS (simplified mobile phone), a public line, a LAN, and so on. The data indicating whether to use and the information of “display type” (item number 4) indicate whether the display capability of the client 1 is SVGA 16 bits, VGA 256 colors, CGA monochrome,. Specify each data. These are specified for each user name (item number 1). As the item number and the use environment information for each user, other item numbers and necessary data can be additionally specified according to the purpose other than the above contents.
[0018]
In the editing server 2, the request signal and the environment specification data received from the client 1 are temporarily stored in the use environment information processing unit 21. The use environment information processing unit 21 converts the environment designation data into edit data used for editing the hypertext and passes the data to the information edit unit 22. Further, it transmits a request signal received from the client 1 to the AP server 3. That is, the request signal is relayed.
[0019]
The use environment processing unit 21 first generates an edit item from information on the item number of the environment specification data. For example, as shown in FIG. 5, “priority information” representing what information is prioritized as transmission information to the client 1 from “usage status” of the environment designation data is generated as an edit item. In addition, a “data amount” representing an upper limit value (threshold value A) of hypertext data processing is generated from the “communication type” as an edit item. Further, from the “display type”, “image color number” and “size compression range” suitable for the display capability of the client 1 are generated as edit items.
The use environment information processing unit 21 stores, on a memory (not shown), a correspondence table between environment designation data and edit items as shown in FIGS. 6A to 6C, and an edit item as shown in FIG. Then, a correspondence table between priority information) and keywords is provided, and by referring to these correspondence tables, conversion from environment specification data to edited data including keywords is performed.
[0020]
For example, as shown in FIG. 6A, when the environment designation data specifies a life scene of “at work” as the information of “usage status”, the edit item “latest information” corresponding to the “usage status” To get. From FIG. 7, “date of the day” is acquired as a keyword corresponding to “latest information”. Similarly, if the environment specification data specifies a life scene of “Available”, obtain the edit items of “Job information”, and enter “Customer company name”, “Project related person name”, “Mobile communication”. ... Are acquired. If the environment specification data specifies a life scene of "holiday", an edit item of "private information" is obtained, and the corresponding "child care information", "regional information", "cooking",.・ The keyword is acquired.
[0021]
Also, from FIG. 6B, when the environment designation data designates “mobile phone” as the communication type, information “100 kbytes or less” is acquired as the data amount threshold A. Similarly, when "PHS" is designated, "1 MB or less" is designated, when "public line" is designated, "10 MB or less" is designated, and when "LAN" is designated, "unlimited" is designated. Get information.
[0022]
Further, from FIG. 6C, when the environment designation data designates a “display type” such as “SVGA · 16 bits”, “16 bits / size 100%” in the high image quality mode, and “16 bits / size 100%” in the low image quality mode Compression information such as "256 colors / size 20%" is obtained. When the environment designation data specifies "display type" such as "VGA / 256 colors", "256 colors / size 100%" in the high image quality mode, and "16 colors / size" in the low image quality mode. Compression information such as "size 20%" is obtained. The selection of the low image quality mode and the high image quality mode will be described later.
[0023]
Next, an editing process of the hypertext transmitted from the AP server 3 based on the editing data will be described. FIG. 8 is a diagram showing the flow of various data in this case.
The AP server 3 searches for a hypertext corresponding to the request signal from the client 1 received via the editing server 2 and transmits the hypertext to the editing server 2. The transmitted hypertext is input to the information editing unit 22 of the editing server 2. Then, the information editing unit 22 edits the hypertext based on the editing data generated in the usage environment information processing unit 21 first. The hypertext to be edited conforms to the HTTP format, for example, as shown in FIG. 9, and its header and the like identify the heading of the text, the body, the type of image, and the identification of the semantic grouping of the information. It is possible.
[0024]
Hereinafter, the procedure of the editing process of the hypertext in the information editing unit 22 will be described with reference to FIGS. 10 is an overall processing procedure, FIG. 11 is an image data compression processing procedure, FIG. 12 is an example of image data compression order, FIG. 13 is an example of text data transmission contents, and FIG. 14 is a text data editing processing procedure. FIG.
[0025]
Referring to FIG. 10, when the information editing unit 22 receives a hypertext from the AP server 3 (step S101), first, the presence or absence of a keyword regarding priority information in the hypertext is determined for each group by word matching (step S102). . Then, the image compression processing (S103) and the text data editing processing (S104) are performed in this order, and the groups considered to be necessary are sorted among the groups so as to come before the other groups (S105). Then, the data included in the sorted group is transmitted to the client 1 (S106).
[0026]
In the image compression process, as shown in FIG. 11, first, when all the image data in the hypertext are compressed using the highest image quality mode (high image quality mode) among the “display types” included in the edited data. Is calculated (step S111). For example, from FIG. 6C, when the display type of the environment designation data indicates SVGA 16 bits, the compression information included in the edited data is 16 bits and 100% in the high image quality mode. All image data is compressed according to this information. Then, the total data amount of the hypertext obtained by adding the data amount of the image when all the images are compressed in the high image quality mode and the data amount other than the image data included in the hypertext is calculated. It is determined whether or not the total data amount exceeds a predetermined threshold value A (step S112). If the total data amount does not exceed the threshold value A (step S112: No), the above-described priority information is added to the heading or text body. The group including the keyword is preferentially placed at the beginning of the sentence (step S105). On the other hand, when the total data amount exceeds the threshold value A (step S112: Yes), the mode in which the image quality is reduced (low image quality mode), that is, when all the image data is compressed in 256 colors / size 20%. The total data amount of the hypertext is calculated (step S113). Then, it is determined whether or not the total data amount of the hypertext in this case exceeds the threshold value A (step S114).
[0027]
If the total data amount exceeds the threshold value A even in the low image quality mode (step S114: No), it is determined that image data is not transmitted (step S115), and the process proceeds to text data editing processing (step S104). . On the other hand, if the total data amount in the low image quality mode does not exceed the threshold value A (step S114: Yes), one of the image data included in the hypertext is compressed in the low image quality mode (step S116). When the compression of the image data is completed, the total data amount of the hypertext at that time is calculated (step S117), and it is determined whether the total data amount exceeds or does not exceed the threshold value A (step S118). If the threshold value A is exceeded (step S118: No), the process returns to step S116, and further another image data is compressed in the low image quality mode, and steps S117 and S118 are executed. Hereinafter, image data is compressed one by one until the total data amount of the compressed hypertext becomes equal to or smaller than the threshold value A.
[0028]
When the image data is compressed one by one in the low image quality mode, as shown in FIG. 12, the keyword of the priority information is not included before the image data included in the group including the keyword of the priority information. It is assumed that the image data included in the group is compressed. Further, regardless of whether or not the keyword of the priority information is included, the compression is performed first on the larger ones in each group.
[0029]
The contents of the text data editing process (step S104) will be described. As described above, when not transmitting all the image data, the text data is edited in accordance with the content of the transmission to reduce the size of the hypertext. The transmission contents in this case are set in advance as shown in FIG. 13, for example. For example, taking transmission content # 1 as an example, for a group including the keyword of the priority information included in the edited data, the heading and the text are used as the transmission content, and for the group not including the keyword, the heading and the head of the sentence are counted. Only a predetermined number of characters are the transmission contents. In the transmission content # 2, for the group including the keyword, the heading and the body are set as the transmission content, and for each group not including the keyword, only the heading is set as the transmission content. In the transmission content #N, only the heading of the group including the keyword is set as the transmission content, and the group not including the keyword is not transmitted. FIG. 14 shows the procedure in this case in more detail.
[0030]
Referring to FIG. 14, first, the total data amount when all text data is transmitted according to transmission content # 1 is calculated (step S131), and the calculated total data amount is set to a predetermined data amount threshold value A. It is determined whether it exceeds (step S132). If the threshold value A is not exceeded (step S132: Yes), the text data is edited to the content of the transmission content # 1 (step S133). The edited text data is transmitted to the client 1. On the other hand, when the total data amount exceeds the threshold value A (step S132: No), the total data amount when all the text data is transmitted according to the transmission content # 2 is calculated (step S134), and the calculated total data amount is calculated. It is determined whether the amount exceeds the threshold value A (step S135). If the threshold value A is not exceeded (step S135: Yes), the text data is edited to the content of the transmission content # 2 (step S136). The edited text data is transmitted to the client 1. Hereinafter, exactly the same processing is repeated in the order of transmission content # 3 to transmission content # N-1. Regarding the last transmission content #N, when it is determined that the total data amount when edited according to transmission content # N-1 exceeds threshold value A, and when all text data is transmitted according to transmission content #N Is calculated (step S137), and it is determined whether the calculated total data amount exceeds the threshold value A (step S138). If the threshold value A is not exceeded (step S136: Yes), the text data is edited according to the transmission content #N (step S139).
[0031]
The edited text data is transmitted to the client 1. However, if the total data amount exceeds the threshold value A (step S136: No), exceptional editing processing is performed on the text data, and the text data is transmitted to the client 1. The exceptional editing process includes, for example, extracting and editing only a few characters from the head of the heading of each group including a keyword.
[0032]
As described above, in the communication system of the present embodiment, the editing server 2 performs editing processing such as compression of hypertext and data relocation to the client 1 in accordance with various physical environments and usage conditions of the communication line 4 and the client 1. Therefore, the hypertext can be transmitted efficiently without imposing an excessive burden on the client 1. For example, it is possible to discriminate between data considered to be necessary from the viewpoint of usage status and data that is not necessary, and arbitrarily change the arrangement of both according to the user's desire. The criteria for selecting necessary data and non-required data can be set variously according to the life scene at the time when the user uses the system. Further, when adjusting the data amount, the information amount of the data deemed necessary from the viewpoint of the use situation can be compressed as little as possible, and the information amount of only the data deemed unnecessary can be compressed. . Further, since the amount of information is adjusted according to the use situation of the user, the usage fee of the communication line 4 can be reduced, which is economical for the user. Since information required by the user is preferentially displayed on a screen or the like, there is an advantage that the user does not need to look through unnecessary information.
[0033]
In the present embodiment, the client 1, the editing server 2, and the AP server 3 have been described as independent devices. However, the client 1, the editing server 2, and the editing server 2 and the AP server 3 are configured as an integrated device. May be. Further, each device is a general-purpose computer device and a program storage medium in which a program consisting of a group of instructions read and executed by the computer device is physically materialized, for example, a CD-ROM (compact disk ROM) or a flexible disk. It can also be realized by a disk. This program causes the above-described processing to be formed when executed by a computer device.
[0034]
【The invention's effect】
As is apparent from the above description, according to the present invention, the document information is automatically edited according to various physical environments or usage conditions on the receiving side, so that the document information can be efficiently received. There is.
[Brief description of the drawings]
FIG. 1 is a block diagram of a communication network system according to an embodiment of the present invention.
FIG. 2 is an exemplary view for explaining a flow of data from a client to an editing server and an AP server in the embodiment.
FIG. 3 is an exemplary diagram showing a format example of environment designation data according to the embodiment;
FIG. 4 is a view showing a specific example of environment designation data according to the embodiment;
FIG. 5 is an exemplary view showing a correspondence relationship between a use environment and edit items according to the embodiment;
6A is a diagram illustrating the contents of each piece of priority information of the edited data according to the present embodiment, FIG. 6B is a diagram illustrating the upper limit value of the data according to the communication type of the edited data according to the present embodiment, FIG. 3C is a diagram showing compression information for each display type of edited data according to the embodiment.
FIG. 7 is a diagram showing keywords for each priority information of edit data according to the embodiment;
FIG. 8 is an exemplary view for explaining the flow of data from the AP server to the editing server and the client in the embodiment.
FIG. 9 is a view showing an example of a hypertext format according to the embodiment.
FIG. 10 is an explanatory diagram of a processing procedure of an information editing unit according to the embodiment.
FIG. 11 is an explanatory diagram of a procedure of image data compression processing according to the embodiment;
FIG. 12 is an exemplary view showing an example of a compression order of image data according to the embodiment;
FIG. 13 is a view showing an example of transmission contents of text data according to the embodiment.
FIG. 14 is an explanatory diagram of a procedure of a text data editing process according to the embodiment;
[Explanation of symbols]
1 client
2 Editing server
3 AP server
11, 31 AP processing unit
12 Usage environment information generation unit
13, 23, 32 Communication control unit
21 Usage Environment Information Processing Department
22 Information Editing Department

Claims (7)

A first communication device that transmits a request signal for requesting document information, and a second communication device that externally acquires document information including image data and text data corresponding to the request signal received from the first communication device Are connected as needed via a communication path, and the first communication device generates environment designation data including designation of a physical environment including a communication type of the own device at the time of receiving the document information and designation of a user's life scene. A first step of transmitting to the second communication device with the request signal;
The second communication device that has received the environment designation data relays the request signal to the outside to acquire document information corresponding to the request signal from the outside, and determines the data amount and information arrangement order of the acquired document information in the environment. A second step of editing the specified data so as to conform to the specified content, and transmitting the edited document information to the first communication device;
Has,
When editing in the second stage to conform to the specified content, the data amount obtained by adding the data amount after compressing the image data and the data amount other than the image data is equal to the first communication amount. If it is larger than a threshold value set for each communication type provided according to the physical environment of the device, it is determined that image data is not transmitted, and text data is edited according to the content of the transmission. the Ukoto, communication method and characterized in that to compress the size of the document information. When the document information includes a plurality of information groups each of which can be distinguished depending on the presence or absence of a keyword derived from the designated content of the environment designation data, the second communication device does not include the information group including the keyword. 2. The communication method according to claim 1, wherein the arrangement of each information group is changed so that the information group is transmitted with higher priority than the information group. When the document information includes a plurality of information groups each of which can be distinguished by the presence or absence of a keyword derived from the specification content of the environment specification data, and at least a part of the document information includes a compressible information group, 2. The communication method according to claim 1, wherein the two communication devices change the information compression ratio of each information block according to the data amount of each information group or the presence or absence of a keyword. 4. The communication method according to claim 2, wherein the keyword corresponds to a user's life scene of the first communication device when receiving the document information. A request signal for requesting document information comprising a plurality of information groups and environment specification data for specifying a physical environment and a user life scene when receiving the document information are received from a client, and the request signal is received. Relay means for relaying outside and acquiring document information including image data and text data corresponding to the request signal from outside,
Edit data generating means for generating edit data including a keyword for specifying an edit mode of document information suitable for the physical environment of the client and the environment of the user's life scene based on the specified content of the received environment specification data,
Document editing means for editing the data amount of each information group and the arrangement order of each information group in the document information according to the editing data, and transmitting the edited document information to the client;
Has,
When editing according to the edit data , the document editing means may add a data amount after compressing the image data and a data amount other than the image data to the first communication device. If greater than the threshold value is determined for each communication type provided according to the physical environment, performing the editing process of the text data according to the transmission contents is determined not to perform the transmission of the image data Accordingly, the communication apparatus characterized in that to compress the size of the document information. The document editing unit includes an information compression unit that compresses a data amount of the acquired document information, and information that rearranges an information group including a keyword in the edited data among the compressed individual information groups at the beginning of a sentence. Arranging means, wherein the information compressing means is configured to perform information compression at a higher compression ratio for an information group having a larger data amount and for an information group not including the keyword. The communication device according to claim 5, wherein A first communication device for transmitting a request signal for requesting document information , and document information including image data and text data corresponding to the request signal by relaying the request signal received from the first communication device to the outside And a second communication device that obtains from the outside via a communication path,
The first communication device includes an environment specification data generation unit configured to generate environment specification data including a specification of a physical environment of the own device and a user's life scene at the time of receiving the document information, and transmit the environment specification data to the second communication device together with the request signal. Prepare,
The second communication device generates edit data including a keyword for specifying an edit mode of document information that matches a physical environment of the first communication device or an environment of a user's life scene based on the specification content of the environment specification data. Edit data generating means for editing the data amount of each information group and the arrangement order of each information group in the document information acquired from the outside according to the edit data, and the edited document information to the first communication device Document editing means for sending to
When editing according to the edit data , the document editing means may add a data amount after compressing the image data and a data amount other than the image data to the first communication device. If greater than the threshold value is determined for each communication type provided according to the physical environment, performing the editing process of the text data according to the transmission contents is determined not to perform the transmission of the image data , the communication system characterized in that to compress the size of the document information.

Images